Trip to Nuneaton today. Phone had no signal all the way there. Complain to IT who get EE to issue a new registration text. I also switch off 4G, and suddenly its working!
I decide to fiddle with the settings, restore 4G auto mode, and it's dead again, going from full signal to none in different cells. Then I call EE and they explain. My HTC One Mini is a 4G phone, but we have a 3G only contract. The phone tries to register to the 4G network, it's barred, we get no signal. It'll drop 3G to 2G no problem, just not 4G to 3G.....
